121331110202320 has 80 divisors (see below), whose sum is σ = 291198121413120. Its totient is φ = 46966323801600.

The previous prime is 121331110202303. The next prime is 121331110202329. The reversal of 121331110202320 is 23202011133121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 121331110202291 and 121331110202300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121331110202329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253288635 + ... + 253767205.

It is an arithmetic number, because the mean of its divisors is an integer number (3639976517664).

Almost surely, 2^{121331110202320} is an apocalyptic number.

121331110202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121331110202320 is an abundant number, since it is smaller than the sum of its proper divisors (169867011210800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121331110202320 is a wasteful number, since it uses less digits than its factorization.

121331110202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580844 (or 580838 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121331110202320 its reverse (23202011133121), we get a palindrome (144533121335441).

The spelling of 121331110202320 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred ten million, two hundred two thousand, three hundred twenty".